<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        body {
            font: 12px "simhei", Arial, Helvetica, sans-serif;
            color: #666;
        }
        body>div {
            width: 1000px;
            /*height: 100px;*/
            background-color: #B5D6FC;
            /* 块级元素居中 */
            margin: 0 auto;
        }
        #t_l_div {
            width: 611px;
            height: 376px;
            float: left;
        }
        #t_div {
            /* 解决高度为0 */
            overflow: hidden;
            margin-bottom: 10px;
        }
        #t_r_div {
            width: 375px;
            height: 376px;
            float: right;
        }
        #t_div>div,#b_l_div,#b_r_div>div {
            background-color: #e8e8e8;
        }
        #b_l_div{
            width: 366px;
            height: 233px;
            float: left;
        }
        #b_r_div {
            float: right;
        }
        #b_div {
            overflow: hidden;
        }
        #b_r_div>div {
            width: 198px;
            height: 233px;
            float: left;
            margin-left: 10px;
        }
    </style>
</head>
<body>
    <div>
      <div id="t_div">
          <div id="t_l_div"></div>
          <div id="t_r_div"></div>
      </div>
      <div id="b_div">
          <div id="b_l_div"></div>
          <div id="b_r_div">
              <div></div>
              <div></div>
              <div></div>
          </div>
      </div>
    </div>
</body>
</html>